package org.example.test;


public class Demo {
    public static void main(String[] args) {
       //声明整型变量
        byte b1=20,b2=10,b3=-128,b4=127;//byte: -128+127
        short s1=23453;
        int   a1=234535343;
        long  l1=2354354534335643L,l2=3534564362521344434l;
        //小数的声明
        float f1=234.5f,f2=234.1234567890F;
        double d1=234.12345678901234567890, d2=0.23534543534534d;
        System.out.println("flaot的输出："+f2);
        System.out.println("double的输出"+d1);
        char c1='a',c2='0',c3='我',c4=1;
        System.out.println("c2="+c2+"c4="+c4);
        char c5=65535;//char: 0-65535
        boolean b=true,b5=false;
    }
}
